Set-top box



FIG. 1 is a perspective view of a set-top box, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof taken from the left of FIG. 2;

FIG. 5 is a side elevational view thereof taken from the right of FIG. 2;

FIG. 6 is front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof. 

The ornamental design for a set-top box, as shown and described. 